425729865231 has 48 divisors (see below), whose sum is σ = 685370320128. Its totient is φ = 252483264000.

The previous prime is 425729865227. The next prime is 425729865271. The reversal of 425729865231 is 132568927524.

425729865231 is a `hidden beast` number, since 4 + 2 + 572 + 9 + 8 + 65 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 425729865231 - 2² = 425729865227 is a prime.

It is a super-2 number, since 2×425729865231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425729865271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 789055 + ... + 1214111.

It is an arithmetic number, because the mean of its divisors is an integer number (14278548336).

Almost surely, 2^425729865231 is an apocalyptic number.

425729865231 is a deficient number, since it is larger than the sum of its proper divisors (259640454897).

425729865231 is a wasteful number, since it uses less digits than its factorization.

425729865231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425292 (or 425289 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 425729865231 in words is "four hundred twenty-five billion, seven hundred twenty-nine million, eight hundred sixty-five thousand, two hundred thirty-one".